Morphine, meperidine and ketobemidone used in continuous i.v. infusion for postoperative pain relief were compared in a double-blind, controlled, prospective study in 81 consecutive consenting adult patients after open-heart surgery, with permission from the hospital ethics committee. During the first postoperative period, the infusion rates were fixed. Later on, when the infusion rate could be regulated according to individual patient needs, the variation in infusion rate was large, in accordance with earlier studies. No significant differences were demonstrated between the three analgesics with respect to efficacy of analgesia or side effects like shivering, nausea or vomiting. Respiratory depression following extubation was not observed. During shivering, there was a significant increase in the arterio-mixed venous difference of oxygen in all groups. The amounts of opioids used were relatively small compared to amounts used in patients following abdominal surgery. When interviewed some days after surgery, 18/74 patients remembered moderate pain and 11 severe pain during the stay in the ICU.

The surgical therapy of esophageal perforations still is regarded to be the gold standard and nonadherence should only be considered based on interdisciplinary decisions in individual cases. However, positive results are increasingly being reported for conservative endoscopic treatment, particularly for thoracic perforations.

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Patients with giant paraesophageal hernias often present with nonspecific cardiac and respiratory symptoms and the condition is often misdiagnosed. If it is demonstrated, a possible abdominal involvement should be looked for. Minimally invasive surgery is feasible and efficacious in this condition and in addition to being better tolerated by the patient provides a far better visualization of the intrathoracic parts of a type IV hiatal hernia to the surgeon.